Teen homegrown Aaronson helps Union to 1-1 tie in Atlanta

ATLANTA (AP) - Ezequiel Barco came on in the 67th minute and scored three minutes later to help Atlanta United tie the Philadelphia Union 1-1 on Sunday night.

Defending champion Atlanta (0-1-2) used a series of quick passes to move to ball from the left to the right side where Julian Gressel first-timed a high entry and Barco side-netted a header inside the far post.

Brenden Aaronson, an 18-year-old homegrown making his MLS debut, ripped a right-footer that, as it went through the legs of Leandro Gonzalez Pirez, deflected off the defender's leg past goalkeeper Brad Guzan to give Philadelphia (0-2-1) the lead in the 47th minute.

Atlanta had 71.4-percent possession - finishing with 669 passes compared to just 267 by the Union - but came up empty on a handful of chances. Josef Martinez, who set an MLS record with 31 goals last season, missed wide left on a shot early in the second half and later had his bicycle shot stopped by goalkeeper Andre Blake.